Stefan Zucker, the world's highest tenor, visits the opera divas of his childhood. The journey from apartment to apartment, from diva to diva, from Rome to Milan, turns into an opera road movie.

The film covers a hundred years in the lives of the Ricordi family, the Milan publishing house of the title, and the various composers and other historic personalities, whose careers intersected with the growth of the Ricordi house. It beautifully draws the parallel between the great music of the composers, the historic and social upheavals of their times, as well as the "smaller stories" of the successive generations of Ricordi.